As a millennial, the TV show with Hugh Laurie and Stephen Fry was played when I was a kid, and I've rewatched it several times as an adult and read a few of the books. Our kids have watched the show with us too. I'm currently trying to learn the theme on the piano.

I'm sure it'll continue in some niche, much like Agatha Christie, where I've seen some recent youtube vids by younger people discovering how well they're written. I like it when they say "follows the old trope of ..." and then in the comments you get "doesn't follow it, invented it".